• Diagnose engine compression problems with this easy-to-read digital gauge
• 300 PSI digital gauge with a rubber boot, and a quick disconnect fitting
• The 12 in. hose has a stepped adapter for 14 and 18mm plugs, plus a 10 and 12mm adapter
• Gauge holds the reading for 90 seconds, or until the RESET button is pressed
• Automatically shuts off after 3 min. includes a 9V alkaline battery
• Gauge 2-1/2 in. (63.5 mm) 3 in. (76.2 mm) with boot
• 1-1/2 in. (38.1 mm) x 7/8 in. (22.23 mm) back lite screen
• 3/8 in (9.53 mm) tall LCD segments display PSI, BAR, KG/CM, and KPA
(California Prop 65)